Fluid-conduit device



16, 1930. E. c. ADAMS 7 1,784,980

' FLUID connum nnvrcs Filed July 2, 1928 Patented Dec. 16,1930

UNITED STATES mamas EDWARD C. ADAMS, OF WASHINGTON,:IDISTRIGT,OF COLUMBIA v FLUIDY-CONDUTIT nnvron Application filed July 2, 1928. Serial No. 289,853.

My invention consists in a new and useful improvement in fluid conduits, and is designed more particularly to provide a device for supplying gasoline from the storage tank to the carburetor of an explosive gas engine. The purpose of my invention is to lock the gasoline supply line to prevent unauthorized use. My device is applied on cars in which a pump, or other impelling means, is used to supply gasoline from the storage tank to the carburetor. The value of my invention lies in producing a structure which cannot be modified to allow the gasoline to be supplied around the locking mechanism. The particularly novel and useful feature of my invention is the combination with the piping system of a locking means to interrupt the flow, and a pump to create the flow, the pump valves being so disposed in relation to the locking. means that unauthorized circumvention of the lock renders the pump inoperative. Another valuable feature of my device is the disposition of the piping, the pipe from the lock casing to the pump being disposed with- 95 in the pipe from the pump to the lock casing. Another valuable feature of my device is the means which I provide for connecting the pipes to the conduits in the lock casing and the pump.

lVhile I have disclosed in the drawing and have hereinafter fully described one specific embodiment of my invention, it is to be distinctly understood that I do not consider my invention limited to said embodiment, but I refer for its scopeto the claims appended hereto.

In the drawings: Fig. 1 is a crosssectional view of my device. Fig. 2 is an enlarged cross-sectional view of the pump valves.

In the device illustrated in the drawing, 1 provide a lock casing 1 having a suitable cavity 2 therein in which is positioned the M therein in which a suitable key may be inserted for turning the barrel B. I provide rotatable lock barrel B with a key-way W channel Cwhen the barrel B is properly positioned and having the pipe 4 communicating therewith which may be connected to the gasolinesupply tank. I providein the casing 1 a secondbore 5"so. disposed as to be in communication with the channel C when the barrel B is properly positioned and opening through the face 6 of the casing 1. I also provide a third bore 7 in the'casing 1 having one end opening through the face 6 and the other end'opening through the outer surface. of the casing 1 at any suitable point, to which may be connected the pipe 8 connected with the carburetor. In the bores 5 and 7 I mount suitable check-valves V and V1,' respectively. Suitably mounted upon the face 6 of the casing 1 there is the funnel-shaped end 9 of the pipe 10 which is thus connected with the bore 7. The pipe 10 hasits other funnelshaped end 11 suitably mounted upon the face 12 ofthe block 13 provided with the bore 14 which is thus connected with the pipe 10. The pump P is-suitably attached to the block 13 and has the operating rod 15 and diaphragm 16, the pump chamber 17 being formed between the block 13 and diaphragm 16, the bore 1 1 communicating with the chamber 17,"and a. second bore' 18 in the block 13 also in communication with the chamber 17. I provide a pipe 19. disposed within the pipe 10 connecting the bore 18 and the bore 5.

It is to be noted that the disposition of the valves V and V--1 of the pumpP in the lock casing 1 renders the pump P inoperative if attempt is made to connect the pipe 4 from the storage tank directly to the pump P. Also is to be noted that by reason of the fact that the pipe 19 is disposed within the pipe 10, this pipe 19 cannot/be tapped except by rupturing the pipe 10. Attention is also called to the fact that the conduit 7 opens through theface 6 of the casing 1 and the conduit 14 opens through the face 12 of the block 13, and that the openings of the con- 'duits 7 and 14 are of such a character as to prevent; any pipe or tube being attached thereto. I contemplate making the openings of such design as to make it practically impossible toinsert a tube therein.

2 V a r 7 1,784,980

Having described my invention, what I claim is: c

1. In a fluid conduit device, the combination of a conduit connected with a fluid sup ply source; a conduit'connected with a fluid supply discharge a pump interposed between said conduits; locking means in a casing interposed between said pump and one'of said conduits; and a valve of said pump disposed in said casing.

2. In a fluid conduit device, the combina tion of a conduit connected with a fluid supa ply source; a chamber with which said con duit connects; a pump; a conduit having one of the pump valves therein from said chamber to the intake side of said pump and a conduit having the other pump valve'therein from the discharge side of said pump having a portion thereof disposed so as to enclose a portion of said conduit from the chamber .to the pump. v

3. In a fluid conduit device, the vcombina-o tion of achamber; a pump; a'conduit from said chamber tosaid pump; locking means in said chamber to close said conduit; a second conduit from said pump, the two conduits being so disposedthat a portion of one is enclosed by a portion of the other.

i. In a fluid conduit device, the combina-V tion of a casing having a face; two conduits in said casing opening through said face; a second casing having a face; two conduits in said second casing opening through its face; a pipe connecting one of the conduits in one casing with'one of the conduits in the other casing; a'pipe attached to the said face of each casing and disposed about said first mentioned pipe. I i a 5. In a fluid conduit device, the combination of a lock casing; a lock barrel in said casing; three conduits in said casing; a'conduit in said barrel for connectingtwo of the conduits in the casing; a pump connected with two of the conduits in the casing; an inlet valve disposed in one conduit inthe casing; and'an outlet valve disposed in another conduit in the casing.

In testimony whereof I aifix my signature.

EDlVAB-D C. ADAMS. 

